$811 Find Cheap Flights from Sydney to Siem Reap

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sydney to Siem Reap departing on 2/3. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Siem Reap

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Siem Reap, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sydney to Siem Reap, as well as popular online travel agencies
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Flight Deals

Book Cheap Sydney to Siem Reap Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Sydney to Siem Reap that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Sydney to Siem Reap

Sat, 30 May - Sat, 6 Jun
VietJet Air Logo
10:15 - 18:05
SYD
-
SAI
34h 50m
2 stops
VietJet Air Logo
19:05 - 07:20
SAI
-
SYD
33h 15m
2 stops
$811VietJet Air
Sat, 30 May - Sat, 6 Jun
Multiple Airlines Logo
13:00 - 09:15
SYD
-
SAI
23h 15m
2 stops
Multiple Airlines Logo
19:10 - 07:20
SAI
-
SYD
33h 10m
1 stop
$840Multiple Airlines
Wed, 4 Mar - Wed, 18 Mar
Singapore Airlines Logo
16:10 - 09:50
SYD
-
SAI
21h 40m
1 stop
Singapore Airlines Logo
10:45 - 11:50
SAI
-
SYD
21h 05m
1 stop
$860Singapore Airlines
Wed, 4 Mar - Wed, 18 Mar
Singapore Airlines Logo
16:10 - 15:55
SYD
-
SAI
27h 45m
1 stop
Singapore Airlines Logo
10:45 - 11:50
SAI
-
SYD
21h 05m
1 stop
$865Singapore Airlines
Sat, 30 May - Sat, 6 Jun
Multiple Airlines Logo
10:15 - 18:05
SYD
-
SAI
34h 50m
3 stops
Multiple Airlines Logo
19:05 - 07:20
SAI
-
SYD
33h 15m
2 stops
$875Multiple Airlines
Tue, 23 Jun - Sun, 12 Jul
Multiple Airlines Logo
22:10 - 09:15
SYD
-
SAI
14h 05m
1 stop
Multiple Airlines Logo
10:00 - 07:20
SAI
-
SYD
42h 20m
2 stops
$1,003Multiple Airlines
Tue, 23 Jun - Fri, 10 Jul
Multiple Airlines Logo
22:10 - 09:15
SYD
-
SAI
14h 05m
1 stop
Multiple Airlines Logo
14:55 - 07:20
SAI
-
SYD
37h 25m
2 stops
$1,020Multiple Airlines
Tue, 23 Jun - Sat, 11 Jul
Multiple Airlines Logo
10:15 - 11:10
SYD
-
SAI
27h 55m
2 stops
Multiple Airlines Logo
19:10 - 07:20
SAI
-
SYD
33h 10m
1 stop
$1,026Multiple Airlines
Sat, 27 Jun - Sat, 11 Jul
Multiple Airlines Logo
12:15 - 09:15
SYD
-
SAI
24h 00m
2 stops
Multiple Airlines Logo
19:10 - 07:20
SAI
-
SYD
33h 10m
1 stop
$1,028Multiple Airlines
Mon, 22 Jun - Sun, 12 Jul
Multiple Airlines Logo
22:10 - 10:00
SYD
-
SAI
14h 50m
1 stop
Multiple Airlines Logo
10:00 - 07:20
SAI
-
SYD
42h 20m
2 stops
$1,031Multiple Airlines
Booking Insights

KAYAK's insights & trends for Sydney to Siem Reap flights

Get data-powered insights and trends into flights from Sydney to Siem Reap to help you find the cheapest flights, the best time to fly, and much more.

How much is a return flight from Sydney to Region of Siem Reap?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Sydney to Region of Siem Reap departing in May.

What is the cheapest month to fly from Sydney to Siem Reap?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sydney to Siem Reap, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sydney to Siem Reap is August, when tickets cost $803 (return) on average. On the other hand, the most expensive months are April and December, when the average cost of return tickets is $1,912 and $1,669 respectively.

How far in advance should I book a flight from Sydney to Siem Reap?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sydney to Siem Reap, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Sydney to Siem Reap, you should book around 3 weeks before departure, which saves you about 28% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonFebruary
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (45% more expensive on average)

FAQs - booking Siem Reap flights

  • How does KAYAK find such low prices on flights from Sydney to Siem Reap?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sydney to Siem Reap.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sydney to Siem Reap?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sydney to Siem Reap is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sydney to Siem Reap?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Sydney to Siem Reap with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sydney to Siem Reap?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Sydney to Siem Reap up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sydney to Siem Reap

 
See real verified KAYAK customer reviews for airlines flying from Sydney to Siem Reap. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sydney to Siem Reap? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.1
Singapore AirlinesOverall score based on 1434 reviews
8.0Entertainment
7.8Food
8.6Crew
8.0Comfort
8.3Boarding
Airline reviews

I find it was a bit hot before take off. If there is a way to improve the airflow it would be great

8.0 ExcellentRavin, Jan 2026
SIN - CMB
Read more Singapore Airlines reviews

I find it was a bit hot before take off. If there is a way to improve the airflow it would be great

The flight crew was phenominal! We couldn't have asked for any better. They were experienced professionals.

The crew was very courteous and professional. the flight is relatively clean and comfortable.

Pleasant business class flight experience with good onboarding experience. Flight service team was excellent with usual book-the-chef menu available

SQ service is great as always. However, the food quality seems to have gotten a lot worse recently.

Wish the seat don’t have restrictions, can’t fully insert backpack all the way inside.

Wish the underseat compartment don’t have a restriction, can fit a personal item such as backpack fully like most Boeing

The business class seats were very uncomfortable. When in lie flat position my legs were very restricted.

Lounge a access was excellent as was the attentiveness and service from the crew as always. The food and drink supplied were of good quality. The entertainment system had a good selection and I liked the mapping system supplied. However the screen wild have been bigger and the operation a little smoother to navigate. The seats were barely comfortable, but adequate.

The staff on the plane were attentive and friendly. The frustration with the cabin crew was that we were served second to special diet people. And, we were in economy section. The boarding staff was mediocre. Got scolded for requesting to sit with spouse on 14 hours long flight home. Was told they cannot break up families for us. Didn’t understand how we were denied sitting together as we are husband and wife. After many words of exchange, we were accommodated. Cleaning crew did a horrible job! Bathrooms were unsanitary or dirty from beginning of flight! Didn’t expect sparkling as its economy, but did except decent.

The flight crew and attendants are very professional and polite.

Food and welcome services were good , however we experienced issues with the entertainment system and poor headsets

Very good flight and very kind crew Only thing is I wish there would be a vegetarian option for the meals

Lovely staff, comfortable seats. Transit time was short but they had great processes in place to get us on the plane.

For a domestic flight, seats are ok, but fir us as tall dutchies, the legroom is too small. However, for a short and affordable flight, is not a big problem. Staff is still very nice and a complementary water very welcome.

2 hours delay, time changes started already 2 days before the flight

Average, not more then that. Cannot compete with Singapore Airlines

I bought the front row seat and made and early online check in but they changed my seat to the back row without prior notice. The inflight meal was too poor, only a piece of small finger food. The boarding is a disaster, everyone is stuffed in a bus in chaos. Doesnt worth the money at all.

Poor. Flight was delay without prior notice. Poor boarding. Poor meal service. Plane was dirty and smelly. Does not worth the money.

Overall very nice airline. The seats were cloth unlike leather seats I am accustom to on planes. The food was adequate. I had to use a paper boarding pass as they do not like electronic boarding passes. I scanned my electronic pass, but the gate agent requested the paper pass. Luckily I had a paper pass, although my electronic pass worked and when the paper pass was scanned it stated I was already on board.

Everything you need to know for your flight from Sydney to Siem Reap

Information on your arrival and departure airports